Isaac l



I. L. MARKS.

MOTOP VEHICLE RADIATOR ATTACHMENT.

APPLICATION FILED FEB. 4. 1918 L3ML346, V Patented Sept. 23, 1919.

life? J.

WETED @TA 71 ISAAC L. MARKS, OF SAN FRANCISCQ, CALIFORNIA.

MOTUR -VEHICLE-MDIATOR ATTACHMENT.

Application filed February 4, 191a Serial no. erases.

To all whom it may concern:

Be it known that I, IsAAo L. MARKS, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Motor Vehicle Radiator Attachments, of which the following is a specification.

This invention relates to an improved sight tube attachment for motor vehicle radiators and has as its primary object to provide a device of this character whereby the level of water in the radiator may be readily determined.

The invention has as a further object to provide a device which may be readily applied to substantially any conventional type of motor vehicle already in use without tube become so broken, it may be readily replaced.

Other and incidental objects will appear as the description proceeds. In the drawings wherein I have illustrated the preferred embodiment of the invention, and wherein similar reference characters designate corresponding parts throughout the several views:

Figure 1 .is a front elevation showing a conventional type of radiator equipped with my improved sight tube attachment,

Fig. 2 is a fragmentary vertical sectional view more particularly illustrating the mounting of the sight tube at its lower extremity, and i I Fig. 3 is a view similar to Fig. 2 and more particularly illustrating the mounting of the sight tube at its upper extremity,

In order that the construction, mounting and operation of my improved attachment may be accurately understood, I have, in the drawings, shown the device in connection with a conventional type of motor vehicle radiator 10 having a hollow casing 11 provided at the bottom of the'radiator with a suitable drain cock 12. In carrying out the invention I employ a pair of supporting brackets 13 and 14 respectively. The bracket .13 is secured by screws or other suitable fastening devices to the front sage is a vertically disposed hollow clamp! ing screw 16 provided with a plurality of openings 17 communicating with the said passage. Detachably connected to the upper extremity of the said clamping screw is a thumb piece 18 while the lower extremity off the screw is formed with an annular radial flange 19. The flange 19 of the clamping screw is rotatably received within an an}:

'nular flange 'or socket 20 opening downwardly from the lower side of the bracket.

The bracket 14 is, as shown in detail in Fig 2, provided with a suitable vertical opening and, upon the up er side thereof, is formed with an annular ange or socket 21 confronting the socket 19 of the bracket 13. Loosely fitted through the openin in the bracket 14 is the lower terminal 0 a sight at tube 22' provided at the adjacent extremity thereof with an annular flange 23 received within the socket 21 of the bracket and resting upon a washer 24 disposed within the said socket. rubber or other resilient material and hear ing over the said flange within the socket is a similar washer 25. At its upper extremity the sight tube 22 is received within This washer is formed of W the socket 20 of the bracket 13 and the adjacent terminal thereof is formed with an annular bead 26 to snugly engage within the said socket. This bead acts to center the sight tube in vertical alinement with the clamping screw 17 to communicate there- 3% with and interposed between the flange 19 of the said screw and the adjacent terminal of the said tube is a suitable resilient washer 27. It will accordingly be clear that the screw 16 may be adjusted upon the bracket is a protecting sleeve'or casing 28 formed at its lower extremity with an outwardly directed annular flange 29 overlying the socket 23 of the bracket 14 to rest upon the washer 25. This casing is provided, at the forward side thereof, with a longitudinally extending slot 30 and fitted into the upper end of the said casing to surround the sight tube, is .a spacing collar 31 provided with an annular flange 32 confronting the socket 20 of the bracket 13 and bearin beneath the bead 26 of the tube. This collar 26 is, like the several washers employed, also formed of rubber or other similar resilient material so that when the screw 16 is adjusted to clamp the sight tube in position, as previously described, the head 26 ot' the said tube will be shifted to bear against the flange 32 of the collar for thus also yieldably binding the casing in position. At the same time the collar 31 will serve to center the casing with respect to the sight tube.

Connected at one end to the lower terminal of the sight tube is a hose or other suitable pipe connection 33, the opposite end of which is attached to the drain cock 12 of the radiator. Thus it will be seen that the sight tube will be operatively coupled with the radiator so that the level of the water within the radiator may always be easily determined by simply observing the sight tube through the slot 30 of the casing therefor. My improved attachment, therefore, provides a very simple and effective con struction for the purpose set forth. At the inmate Having thus described the invention, what is claimed as new is:

1. An attachment of the character described including companion supporting brackets, one of said brackets being provided with an o ening therethrough and the other of said brackets with a passage, a sight tube supported between the brackets to communicate at one end with saidpassage and having its opposite end fitting through said opening, and means for connecting the latter end of the sight tube with a radiator casing.

2. An attachment of the character described including companion supporting brackets, one of said brackets being provided with an openingtherethrough, a sight tube supported between the brackets and having one end thereof fitted through said opening, and means for connecting the said end of the sight tube with a radiator casing.

3. An attachment of the character descrimd including a supporting bracket provided with an opening therethrough, a sight tube fitted at one end through said opening, and supported upon the bracket, and means for connecting such end of the tube with a radiator casing, the opposite end of the tube being vented.

4. An attachment of the character described including companion supporting brackets, a sight tube mounted between the brackets andprovided with a flange, a gasket overlying said flange, a casing surrounding the tube and resting against said gasket, a second flange on the tube, a gasket bearing between the latter flange and the ad jacent end of the casing, and means adjustable upon one ofthe brackets to coact with the latter flange of the sight tube for clamping the sight tube in position and binding the casing between said gaskets.

In testimony whereof I aflix my signature.

ISAAC L. MARKS. 1,. 3. 

